问题 读图填空题

柑橘大实蝇主要分布于四川、贵州、云南、广西、湖南、湖北、陕西等(省)区,是危害柑橘类作物的重要害虫。大实蝇的雌成虫刺破柑橘果皮产卵于果肉,孵化后的幼虫在柑橘瓤瓣中取食,导致柑橘未熟先黄,提前脱落,腐烂变质,产量下降,品质变差,发生严重的地区甚至造成绝收。下图是与2008 年四川广元柑橘大实蝇事件有关的部分图解,请据图回答:

(1)大实蝇属昆虫,它的翅和足都着生在________部。

(2)图①中危害柑橘的蛆虫是由大实蝇的⑤__________发育而成的。

(3)用箭头和图中标号②③④⑤表示出大实蝇发育的先后顺序:_________,此发育过程为_________变态发育。

(4)大实蝇事件使广大橘农损失惨重。为了防止这样的事件重演,保护广大橘农的利益,请你提出一项既能控制大实蝇的数量,又不至于造成环境污染的措施。_____________。

答案

(1)胸

(2)卵(或受精卵)

(3)⑤→③→④→②;完全

(4)(此题具有开放性, 只要能达到目标的措施皆可)如:生物防治、以虫治虫、以鸟治虫、以菌治虫等

完形填空
完形填空。
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单项选择题